Not Safe For Work. Used to describe Internet content generally inappropriate for the typical workplace, i.e., would not be acceptable in the presence of your boss and colleagues (as opposed to SFW, Safe For Work).

Now Show Friends and Workmates - a suggestion that the viewer draw the attention of friends and/or workmates to their computer screen before following a link or viewing further content. This indicates that the following content is interesting, informative or inspiring, usually in such a way that it will get the viewer promoted and increase workplace productivity.